After manual dismantling of printed circuit boards, speakers, wires, protective metal casing, deflection system, and electron gun, CRT screens are cut off the cone along the line of welding using the diamond wheel; luminophore is cleaned away by the laboratory vacuum cleaner; screens are washed of process contaminations and dried to prepare for crushing and milling.

For example, light emission can be observed at an electrode placed in contact with an aqueous solution containing luminophore Ru(bpy)32+ (ruthenium (II) tris(2,2'-bipyridine) and an ECL coreactant tripropylamine (TPrA) upon anodic potential scanning.

ECL produced from electrochemically oxidized and reduced species is called "annihilation ECL", while "coreactant ECL" is produced from the interactions between electrochemically reduced or oxidized luminophore and a strongly oxidizing or reducing intermediate formed after the chemical decomposition of an electrochemically reduced or oxidized coreactant.

This will rely on the unprecedented combination of two-photon excitation of a d-block luminophore (Pt- or Ir-based) having a long-lived excited state, followed by partial d-f energy-transfer to sensitise the lanthanide ion.

Herein, we present a novel highly sensitive and selective enhanced ECL method to detect o-aminophenol on the basis of doughnut-shaped structure of the cyclodextrin, using CdSe quantum dots as a luminophores.

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